digital-electronics-mcqs - Set (6)

Correct Answer: Orange && Worng Answer: Red

1. The 555 Timer IC is an _____ pin mini dual inline package.

  • (A). 1
  • (B). 2
  • (C). 4
  • (D). 8
    • View Answer

    Explanation: Not Avilable

    2. The multivibrator circuit which processes one stable state and one quasi-stable is :

  • (A). Astable
  • (B). Bistable
  • (C). Monostable
  • (D). None of the above
    • View Answer

    Explanation: Not Avilable

    3. Which of the following circuits is used for converting a sine wave into a square wave ?

  • (A). Schmitt trigger
  • (B). Monostable multivibrator
  • (C). Both (a) and (b)
  • (D). None of the above
    • View Answer

    Explanation: Not Avilable

    4. An intergator consist of _____

  • (A). Resistor
  • (B). OP-AMP
  • (C). Capacitor
  • (D). All of the above
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    Explanation: Not Avilable

    5. Quantization error occurs in :

  • (A). D/A converter
  • (B). A/D converter
  • (C). Both (a) and (b)
  • (D). None of the above
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    Explanation: Not Avilable

    6. Which of the following memories has the highest storage capacity ?

  • (A). Magnetic Disk
  • (B). Semiconductor memory
  • (C). Ferrite core
  • (D). None of the above
    • View Answer

    Explanation: Not Avilable

    7. Which of the following is used for erasing purpose only ?

  • (A). RAM
  • (B). ROM
  • (C). EEPROM
  • (D). None of the above
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    Explanation: Not Avilable

    8. SIPO stands for

  • (A). Series in parallel out
  • (B). Serial in parallel out
  • (C). Serial in plane out
  • (D). None of the above
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    Explanation: Not Avilable

    9. Which of the following is not a sequential memory ?

  • (A). CCD
  • (B). Magnetic tape
  • (C). RAM
  • (D). All of the above
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    Explanation: Not Avilable

    10. How many select lines would be required for an 8:1 multiplexer ?

  • (A). 2
  • (B). 4
  • (C). 8
  • (D). 3
    • View Answer

    Explanation: Not Avilable

    11. IC 74150 is :

  • (A). A 16 to 1 line multiplexer
  • (B). A 8 to 1 line multiplexer
  • (C). A 2 to 4 line decoder
  • (D). None of the above
    • View Answer

    Explanation: Not Avilable

    12. Data distributors are same as :

  • (A). Decoders
  • (B). De-multiplexer
  • (C). Multiplexer
  • (D). Encoders
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    Explanation: Not Avilable

    13. CRT stands for

  • (A). Cathode Random Tube
  • (B). Cathode Ray Tube
  • (C). Cathode Ray Tunnel
  • (D). None of the above
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    Explanation: Not Avilable

    14. Parallel type is an example of _____

  • (A). D/A converter
  • (B). A/D converter
  • (C). Both (a) and (b)
  • (D). None of the above
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    Explanation: Not Avilable

    15. Binary number (10110)2 equals to (?)10

  • (A). 32
  • (B). 64
  • (C). 14
  • (D). 22
    • View Answer

    Explanation: Not Avilable

    16. Function of weighted Register is to convert

  • (A). Analog signal into a digital signal
  • (B). Digital signal into an analog signal
  • (C). Both (a) and (b)
  • (D). None of the above
    • View Answer

    Explanation: Not Avilable

    17. Which technology is used in compact disks?

  • (A). Laser
  • (B). Electrical
  • (C). Mechanical
  • (D). None of the above
    • View Answer

    Explanation: Not Avilable

    18. 1 GB is equal to :

  • (A). 1250 MB
  • (B). 1296 MB
  • (C). 1024 MB
  • (D). 1600 MB
    • View Answer

    Explanation: Not Avilable

    19. Which of the following Consumes less power ?

  • (A). Fluorescent lamp
  • (B). LCD
  • (C). LED
  • (D). None of the above
    • View Answer

    Explanation: Not Avilable

    20. LED stands for :

  • (A). Light emitting diode
  • (B). Liquid emitting diode
  • (C). Light emitting device
  • (D). None of the above
    • View Answer

    Explanation: Not Avilable

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